To exchange progress, problems and solutions in our common quest to understand and communicate the 3D composition and properties of the subsurface to support science–based decision making...

...and to keeeeeep modelling!

About us

At the annual meeting of the Geological Society of America in Minneapolis in 2011, a group of people decided it would be a good idea for the Geological Surveys of Europe to not only meet in North America, but perhaps to start their own meeting and workshop series. This website is a major step towards mirroring the success of our North American friends whose pioneering work in the field of 3D geological modelling is captured on the Three–Dimensional Geological Mapping site hosted by the Illinois State Geological Survey.

This website holds the presentations, abstracts and some images from the four meetings that have been held to date: Utrecht 2013, Edinburgh 2014, Wiesbaden 2016, Orléans 2018 and Bern 2019.

The site is hosted by the British Geological Survey on behalf of the organisers from the Geological Surveys of Bavaria (LfU), the Netherlands (TNO), France (BRGM) and Great Britain (BGS).

The content of the individual presentations is subject to copyright and permission for re–production should be sought from the authors.


The main activity of the community are the European meetings, which are held approximately every two years. The host venue rotates each time.

Bern, Switzerland – 21st – 24th May 2019

Orléans, France — February 2018

Wiesbaden, Germany — June 2016

Edinburgh, UK — November 2014

Utrecht, Netherlands — September 2013

Copenhagen, Denmark — May 2023


Beyond Europe? Try OneGeology and North American Three-Dimensional Geological Mapping sites.

If you have material for inclusion on this page please get in touch.

Contact details are given at the bottom of each page.

OGC GeoScience Domain Working Group

For anyone who might be interested to contribute to the upcoming OGC/IUGS-CGI GeoScience Domain Working Group focusing on 3D geosciences:

From geological maps to models in Geological Surveys worldwide

A presentation by Gerold Diepolder (LfU), Steve Mathers, Holger Kessler (BGS) & Michiel van der Meulen (TNO) at the William Smith Meeting, Geological Society, Burlington House, Londong, UK, 5 November 2015.

View slides (PDF)


If you're on LinkedIn you may be interested in joining the group Open 3D Geological Modelling Community.

Whilst this group is not specific to Europe it is a useful forum for discussion and is maintained by the same people who operate this website.

Website Enquiries

Enquiries regarding the contents of this site should be directed to Ricky Terrington at the British Geological Survey.


The European 3D Geological Modelling Community is organized by the following people.

Holger Kessler, British Geological Survey

Geologist & Team Leader Modelling Systems

Holger Kessler joined the BGS in 1998 with a degree in Physical Geography and Soil Science from the University of Frankfurt in Germany. For the beginning of his career he was employed as a geological surveyor mapping glacial deposits and landscapes in North Norfolk and Yorkshire. In the early 2000s Holger became involved with a major research project at the BGS developing the capabilities for 3 dimensional geological modelling.

Since then Holger has been instrumental in moving the BGS from a traditional mapping to a modern digital modelling organisation, working closely with stakeholders such as the Environment Agency and the geotechnical engineering sector. His main ambition is to make all BGS data and information as useful and accessible as possible to end users and policy makers in order to make more science-based decisions about the subsurface.

Holger's LinkedIn profile

Holger's BGS staff profile

Gerold Diepolder, Bavarian Environment Agency (LfU)

Gerold W. Diepolder studied geology at the University of Munich. After earning his PhD in 1990 with a thesis on the Bushveld Complex in South Africa he joined the Bavarian Geological Survey (now: Bavarian Environment Agency, LfU) as a research associate with remits on hydrogeology and the geopotentials of the deep subsurface. Short-term overseas assignment for the Federal Institute for Geosciences and Natural Resources (Bundesanstalt für Geowissenschaften und Rohstoffe, BGR) in Namibia in 2001.

For 8 years until September 2016 Gerold was head of the 3D study group of the German State Geological Surveys (Staatliche Geologische Dienste), lately realigned, now being chief executive of the task force “metadata for 3D geological models”. Gerold also was the initiator, coordinator and head of the 2012–2015 transnational 3D modelling and geopotential assessment project GeoMol and is now engaged in several European projects and initiatives geared towards interoperability and web-based dissemination of 3D geological models.

Gerold's LinkedIn profile

Gerold's ORCID profile

Michiel van der Meulen, TNO

Geologist, Geological Survey of the Netherlands

Michiel's LinkedIn profile